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31.

Most widespread rocks in the world are:

A.	Metamorphic rocks	B.	Sedimentary rocks
C.	Igneous rocks	D.	None of these

32.

Hanging valleys are formed by the action of:

A.	Moving ice	B.	Wind
C.	Running water	D.	None of these

33.

Temperature:

A.	Decreases towards the interior of the earth	B.	Remains constant with increasing depth
C.	Increases towards the interior of the earth	D.	None of these

34.

Seismic waves are the result of:

A.	Wind force	B.	Land slides
C.	Seismic activity	D.	None of these

35.

Monsoon winds are largely caused by the differences in _____ between the land and the sea:

A.	Temperature	B.	Pressure
C.	Both (a) & (b)	D.	None of these

36.

When earth and moon are farthest:

A.	Perigee	B.	Quadrature
C.	Apogee	D.	None of these

37.

When earth and moon are nearest that position is called:

A.	Perigee	B.	Apogee
C.	Both (a) & (b)	D.	None of these

38.

When three heavenly bodies are in same line, that situation is:

A.	Quadrature	B.	Perigee
C.	Sizigy	D.	None of these

39.

95% of the lithosphere is composed of:

A.	Sedimentary rocks	B.	Igneous Rocks
C.	Metamorphic rocks	D.	None of these

40.

Thickness of core is:

A.	3470 Km	B.	3480 Km
C.	3490 Km	D.	None of these